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Trials and Tribulations of a 2600k freshly under water

post #1 of 4
Thread Starter 
I thought I’d share my successes and failures with my new rig. Perhaps in hope of getting some suggestions, perhaps just to validate my suspicion that I didn’t win the silicon lottery.

I recently put together a p67 system. Cliff notes version of the build is as follows:

Mobo: Asus P8P67 Deluxe
CPU: i7 2600k (Costa Rica, 3286B222-1901) HT enabled
RAM: Corsair Dominator 2x4gb @1866mhz
PSU: Corsair HX750
CPU Block: XSPC Raystorm Full Copper
Rad: EX480 Push/Pull Bgears Blaster 140mm fans
Pump: MCP35x

I was running at 4.65ghz on a CM 212 Evo for about three weeks while I assembled my WC system.

Well I got the loop all set up over the weekend and let it run at 4.65 just to get a reference for drop in temps (about 25-30deg C under full load) and satisfy myself that water wasn’t going to randomly start gushing out all over my PC (this is my first WC loop) wink.gif I figured now was the time to put the screws to it.

When I first set it up on air I had gotten it into windows at 5.1ghz at 1.43v manual vcore but temps were prohibitive of any stress testing but I figured this was encouraging and with WC I should be able to reach a pretty high stable OC (shooting for 5+ and I wanted to stay under 1.5vcore). My first confusion was why I couldn’t boot into windows at 4.8 even at 1.45 manual vcore, turned out I needed to enable Internal PLL Overvoltage.

My strategy was see if I could get into windows, fire up prime real quick just to see how good a job LLC was doing at maintaining my voltage under load vs idle then restart and bump up multi. I walked straight on up to 51 multi at 1.45v, then the stress testing reality check… Long story short I had to back down(Crashing within a few minutes in prime @1.53vcore at 51multi). I finally thought I was stable at 49 Multi with 1.472v but I’ve apparently crashed about 3 hours later (PC is at work so no more changes till tomorrow).

This leaves me feeling somewhat let down. Now before it’s said, yes I know 4.8 or 4.9 or hell 4.6 is plenty fast but the main reason I went for a WC system was to really push the chip and I had my heart set on the magic 5.0 =P I feel like the 1.48vcore I’ll most likely need to make 4.9ghz 12 hour prime stable is a bit much, it seems much more than the vast majority of other people are using to get to the same level of OC (hence why I feel like I may have lost the silicon lottery). This is even more annoying because I want to keep folding 24/7 on this machine and I have misgivings about running that much vcore 24/7.

So just a summery of the situation is as follows:
Internal PLL Overvoltage: On
Cstates: Auto
Creports: Enabled
All Asus Digi VRM stuff set to max
LLC: Ultra High
Ram: Default speeds @ rated volts
Temps: Great! At 4.6 priming max was 56c, 4.9 priming @ 1.472v max core was 68 (maxed out during 8k FFTs)

Things of note:
All BSODs were 101s
I did disable spread spectrum (not sure why, just changing stuff when I was going for 5.0 and I’ve never known why this should or shouldn’t be on)
I get a more stable vcore with less fluctuation towards the low side when I use Offset
I have not yet played with VCCIO or VCCSA or the other voltage settings down there yet.

Anyway, I’m kinda frustrated at this point so I’m trying to find my settings for a stable 4.9 (or 4.8 if I have to) but I’m sure next week I’ll break down and take another crack at 50 multi. Most likely will start tweaking PLL Voltage, VCCIO and VCCSA as per the findings in this thread and this thread.

So that’s my story, if anyone is bored enough to proffer some advice it’s always welcome. Otherwise feel free to tell me to stop QQing and be happy with what I’ve got =P
 
The Replacement
(9 items)
 
 
CPUMotherboardGraphicsRAM
i7 2600k 4.9ghz 1.48v ASUS P8P67 DELUXE Gigabyte HD 6670 R Samsung 30mn 2133mhz 10-10-10-27-1T 1.5v 
Hard DriveCoolingCoolingCooling
OCZ Vertex 4 8x Bgears b-Blasters 140mm 3x Stock NZXT Fans Lamptron FC4 
CoolingCoolingCoolingOS
XSPC Raystorm Full Copper CPU Block EX420 MCP35x Windows 7 Ultimate 64bit 
KeyboardPowerCaseMouse
Das Keyboard MX Blue Switches Corsair HX750 NZXT Switch 810 Steelseries Sensei Raw 
CPUMotherboardGraphicsRAM
i5 2500k Gigabyte GA P67X UD3 Radeon HD 5450 G.Skill Sniper 
Hard DriveCoolingOSPower
OCZ Vertex 4 Coolermaster Hyper 212 EVO Windows 7 64bit Ultimate Seasonic S12II 520w 
Case
Thermaltake V6 
  hide details  
Reply
 
The Replacement
(9 items)
 
 
CPUMotherboardGraphicsRAM
i7 2600k 4.9ghz 1.48v ASUS P8P67 DELUXE Gigabyte HD 6670 R Samsung 30mn 2133mhz 10-10-10-27-1T 1.5v 
Hard DriveCoolingCoolingCooling
OCZ Vertex 4 8x Bgears b-Blasters 140mm 3x Stock NZXT Fans Lamptron FC4 
CoolingCoolingCoolingOS
XSPC Raystorm Full Copper CPU Block EX420 MCP35x Windows 7 Ultimate 64bit 
KeyboardPowerCaseMouse
Das Keyboard MX Blue Switches Corsair HX750 NZXT Switch 810 Steelseries Sensei Raw 
CPUMotherboardGraphicsRAM
i5 2500k Gigabyte GA P67X UD3 Radeon HD 5450 G.Skill Sniper 
Hard DriveCoolingOSPower
OCZ Vertex 4 Coolermaster Hyper 212 EVO Windows 7 64bit Ultimate Seasonic S12II 520w 
Case
Thermaltake V6 
  hide details  
Reply
post #2 of 4
Well,

Just to let you know it's around 2% - 5% of processors that will give you a +50 multi. You'll probably struggle to beat 5ghz to be honest

http://hardforum.com/showthread.php?t=1578110 is a really good guide, check it out biggrin.gif
post #3 of 4
Thread Starter 
Quote:
Originally Posted by compuman145 View Post

Well,
Just to let you know it's around 2% - 5% of processors that will give you a +50 multi. You'll probably struggle to beat 5ghz to be honest
http://hardforum.com/showthread.php?t=1578110 is a really good guide, check it out biggrin.gif

Good link on that guide, I've looked through it before. That's actually were I got the binning information that led me to believe I shouldn't feel like I'm under achieving at 4.8. I guess reading these boards gives you a slightly skewed perspective because it seems like everybody and their grandmother is hitting 50 multi on 1.4v lol.

Well I'm going to keep playing, I need to find what FFTs are the hardest on the SB and jump straight to those so I don't have to wait 3 hours to find out if my overclock is stable.
 
The Replacement
(9 items)
 
 
CPUMotherboardGraphicsRAM
i7 2600k 4.9ghz 1.48v ASUS P8P67 DELUXE Gigabyte HD 6670 R Samsung 30mn 2133mhz 10-10-10-27-1T 1.5v 
Hard DriveCoolingCoolingCooling
OCZ Vertex 4 8x Bgears b-Blasters 140mm 3x Stock NZXT Fans Lamptron FC4 
CoolingCoolingCoolingOS
XSPC Raystorm Full Copper CPU Block EX420 MCP35x Windows 7 Ultimate 64bit 
KeyboardPowerCaseMouse
Das Keyboard MX Blue Switches Corsair HX750 NZXT Switch 810 Steelseries Sensei Raw 
CPUMotherboardGraphicsRAM
i5 2500k Gigabyte GA P67X UD3 Radeon HD 5450 G.Skill Sniper 
Hard DriveCoolingOSPower
OCZ Vertex 4 Coolermaster Hyper 212 EVO Windows 7 64bit Ultimate Seasonic S12II 520w 
Case
Thermaltake V6 
  hide details  
Reply
 
The Replacement
(9 items)
 
 
CPUMotherboardGraphicsRAM
i7 2600k 4.9ghz 1.48v ASUS P8P67 DELUXE Gigabyte HD 6670 R Samsung 30mn 2133mhz 10-10-10-27-1T 1.5v 
Hard DriveCoolingCoolingCooling
OCZ Vertex 4 8x Bgears b-Blasters 140mm 3x Stock NZXT Fans Lamptron FC4 
CoolingCoolingCoolingOS
XSPC Raystorm Full Copper CPU Block EX420 MCP35x Windows 7 Ultimate 64bit 
KeyboardPowerCaseMouse
Das Keyboard MX Blue Switches Corsair HX750 NZXT Switch 810 Steelseries Sensei Raw 
CPUMotherboardGraphicsRAM
i5 2500k Gigabyte GA P67X UD3 Radeon HD 5450 G.Skill Sniper 
Hard DriveCoolingOSPower
OCZ Vertex 4 Coolermaster Hyper 212 EVO Windows 7 64bit Ultimate Seasonic S12II 520w 
Case
Thermaltake V6 
  hide details  
Reply
post #4 of 4
Quote:
Originally Posted by DJSticky View Post

Good link on that guide, I've looked through it before. That's actually were I got the binning information that led me to believe I shouldn't feel like I'm under achieving at 4.8. I guess reading these boards gives you a slightly skewed perspective because it seems like everybody and their grandmother is hitting 50 multi on 1.4v lol.
Well I'm going to keep playing, I need to find what FFTs are the hardest on the SB and jump straight to those so I don't have to wait 3 hours to find out if my overclock is stable.

If you don't want to wait you can always go down the intel burn test at maximum memory which will be really bad for your processor I.E It'll BSOD quicker
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